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中国有色金属工业总公司和中国航空工业总公司于1996年11月~13日联合组织对西南铝加工厂完成的科技成果“直升飞机旋翼大梁无缝挤压型材研制”进行了鉴定。由中南工大、北京科技大、南昌航院、东轻、西北铝、603所等大学、研究院所和工厂的专家教授组成的鉴定委员会,认真听取和审查了研究报告、技术标准与检验报告、国内外水平对比及查新报告、用户
China National Nonferrous Metals Industry Corporation and China National Aviation Industry Corporation jointly organized the scientific and technological achievements “Development of Helicopter Rotor Girders Seamless Extrusion Profiles” completed by Southwest Aluminum Processing Factory from November 11 to 13, 1996. An appraisal committee composed of experts and professors from China South University of Technology, Beijing Science and Technology University, Beijing University of Science and Technology, Nanchang Aviation Academy, DongGuan, Northwest Aluminum, and 603 universities, institutes, and factories, listened to and reviewed research reports, technical standards, and inspection reports. Domestic and foreign level comparisons and new reports, users